Render process changes for ResourceTiming sizes.

third_party/WebKit/Source/core/timing/PerformanceResourceTiming.idl

Index: third_party/WebKit/Source/core/timing/PerformanceResourceTiming.idl
diff --git a/third_party/WebKit/Source/core/timing/PerformanceResourceTiming.idl b/third_party/WebKit/Source/core/timing/PerformanceResourceTiming.idl
index 3dfd18eee3651c9f3de2664f534edea8c9473ed6..ffd02a85a40e83124250af0c089835d662afc374 100644
--- a/third_party/WebKit/Source/core/timing/PerformanceResourceTiming.idl
+++ b/third_party/WebKit/Source/core/timing/PerformanceResourceTiming.idl
@@ -46,10 +46,9 @@ interface PerformanceResourceTiming : PerformanceEntry {
     readonly attribute DOMHighResTimeStamp requestStart;
     readonly attribute DOMHighResTimeStamp responseStart;
     readonly attribute DOMHighResTimeStamp responseEnd;
-    // TODO(foolip): The spec has tranferSize/encodedBodySize/decodedBodySize
-    // and a serializer:
-    // readonly attribute unsigned short transferSize;
-    // readonly attribute unsigned short encodedBodySize;
-    // readonly attribute unsigned short decodedBodySize;
+    [RuntimeEnabled=ResourceTimingSizes] readonly attribute unsigned short transferSize;
+    [RuntimeEnabled=ResourceTimingSizes] readonly attribute unsigned short encodedBodySize;
+    [RuntimeEnabled=ResourceTimingSizes] readonly attribute unsigned short decodedBodySize;

[kinuko, 2016/06/28 15:35:07]

We sent out I2S so basically we don't need to make this behind the flag, am I
right?

[Adam Rice, 2016/06/29 09:52:15]

I misunderstood that part of the launch process. I have removed the flag.

+    // TODO(foolip): The spec has a serializer:    
     // serializer = {inherit, attribute};
 };